Eraser for type-writers.



No. 852,191., PATENTED APR. 30, 1907.

E. G. MoFADDEN.

ERASER FOR TYPE WRITERS.

APPLICATION FILED JAN.28.1907.

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WITNESSES INVENTOH 2%? 7 Zmrzswz fl fakzerz MW- [WM/M1 "60 ATTORNEYSUNITED STATES PATENT orrron. EMERsoN onARLEs McFADDEN,O'F SHORT HILLS,NEW JERSEY.

ERASER FOR TYPE'IWRITERS- Specification of Letters Patent.

Patented April 30, 1907.

Application filed January 28, 1967. Serial No. 354,462.

. vented a new and Improved Eraser for T e-Writers of which thefollowing is a fu li: clear, and exact description.

This invention is an improved eraser for typewriters, and is designed torender writ mg'invisible as produced by the machine,

without the need of rubbing it from the. paper, as is the-usualpractice,'-but efiecting the erasin by reproducing coincident there withthe c aractersdesired to be erased and in an ink of the same color asthe background of the paper or other material on which said charactersappear. This is accomplished by shifting the typewriter carriage back tothe point where the writing to be removed or error begins, and afterinserting between the machine ribbon and paper my improved erasercomprising a ribbon inked in the color of the background of thepaper,.the error is repeated by striking the proper keys.

Reference is to be had to the accompanying drawings forming a part ofthis specification, inwhich similar characters of reference indicatecorrespondin parts in all the figures.

. Figure 1 is a front e evation of one embodi- 'ment of my invention;Fig; 2 is an edge view of the same Fig. 3 is an elevational viewcorresponding to Fig. 1, but with the ribbons removed; Fig. 4 is a faceview of the uninked ribbon; Fi 5 is a like view of the inked ribbon, anFig. 6 is a cross section through the ribbons shown in Figs. 4 and5'when attacllliled. I 1

can'yin out In invention, em 0y a suitable holdir for a1 ribbons, thepre ferred embodiment of which consists of a spring fork,

I preferably made of a single piece of wire 1 out upon itself at itscenter, as shown in Figs. 1 and 3, with the wire formed into a fork atits "free ends, comprising spring'arms 2 separated a suitable distance,and each provided'with a hooked extremity 3. At an intermediate point ofthe holder, the handle end thereof is constructed with an offset portion4, as best shown in Fig. 2, said ofiset portion adapting the holder tobe conveniently located in position when in use. In connection with theholder is an uninked ribbon 5 and a ribbon 6, whichare sewed orotherwise secured together at oppositeedges, as indicated at 7 in Figs.1 and 6. These ribbons are of such extent that when applied to thespring arms 2, as indicated in Fig. 1, they will draw said armstogether, thus adapting the holder to keep the ribbons stretched underslight tension, said tension being insuflicient to cause the ribbons tobe punctured or torn when struck by the typewriter keys. The hooks 3 ofthe arms 2 prevent the ribbons from slipping therefrom when applied tothe holder.

To erase or ink out the error or other characters produced by thetypewriter, the eraser is inserted with the ribbon.6 ad'acent to thepaper or other material on whie said characters a pear, it, of course,bein understood that the ribbon 6 is inked in t e same color as thebackground of the aper. With the ribbon 6 covering these cl iaracters,the error is repeated coincident therewith by striking the pro er keys,thus acting to color the characters t e same, or-substantially the sameas the color of the paper on which they are produced, and therebyrendering them practically invisible.

The uninked ribbon 5 not only forms in connection with the ribbon 6 a100 adapted to be held on the arms 2, but also s hields the ribbon 6from the typewriter ribbon and prevents the ink of the latter from beingstamped thereon.

The word color as used in the foregoing description, as also in theclaims hereunto annexed, is intended to cover both white and black.

It is obvious thata construction embody ing my invention widelydiffering from" the construction described, may be made within the scopeof the appended claims; and I claim al such as fall within the scopethereof. Having thus described iny invention I .claim as new and desireto secure by Letters v Patent: 7

1. Aneraser for inking out characters produced by a typewriter or thelike, comprising an inked ribbon of the same color as the background ofthe paper on which said characters appear, and spring arms for holdingsaid ribbon in an outstretched position.

2. An eraser for inking out characters produced by a typewriter or thelike, comprising a holder with spring arms, and an inked and uninkedribbon secured at opposite edges, carried by said arms.

3. An eraser for inking out characters as produced by a typewriter orthe like, comprising a holder withfspiing arms, the latter aving hookedextremities, and an inked and an uninked ribbon secured at oppositeedges, v

carried by said arms.

4. A process for erasing characters as pro duced on pa er or othermaterial by a typewriter, whic consists in re roducing in a color corresonding to the col dr of the paper, the same 0 aracters by the typewriteron said paper coincident with the characters desired to erase.

5. A process for erasing characters as produced on paper or othermaterial by a typewriter, which consists in covering said characterswith a'ribbon inked in the color of the background of the paper, andthen repeating the same characters by the typewriter on said-papercoincident with the characters de sired to erase.

6. An eraser for rendering. invisible the characters produced on paperor other material by a-ty ewriter, com rising an inked ribbon of a colbrcorrespon ing to the pa er on whichsaid characters are produce anduninked ribbon for shielding one side of saidinked ribbon.

8. An eraser for rendering invisible the characters produced on paper orother material by a ty ewriter, com rising an inked rib bon of a co orcorrespon ing to the aper on which said characters are produce anuninked ribbon for shielding one side of said inked ribbon, and meansfor holding said rib bons in an outstretched position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses. I

EMERSON CHARLES MGFADDEN.

Witnesses JOSEPH WALLACE, LOUIS HEDLUND.

